EP 0367097 A3 19910911 - OPTICAL TRANSMISSION SPECTROMETER
Title (en)
OPTICAL TRANSMISSION SPECTROMETER
Publication
Application
Priority
US 26730988 A 19881104
Abstract (en)
[origin: EP0367097A2] An optical transmission spectrometer for transmission measurements of absorbing and scattering samples includes light sources mounted parallel to each other in a holder. The beams of light eminating from the light sources are directed through a beam-combiner. The beam-combiner includes a first refractive surface at an angle of incidence of 45 DEG . The first refractive surface refracts light toward a common axis. The beam-combiner includes a second refractive surface parallel to the first refractive surface for refracting the beam of light along a common axis parallel to the original direction of the beam of light. The beam-combiner can include additional refractive surfaces for other beams of light to combine the beams of light into a primary beam. The includes a collimating tube extending along the common axis for baffling stray light and directing the primary beam through a sample. A second collimating tube is provided on the side of the sample opposite the first collimating tube for baffling stray light passing through the sample. The second collimating tube directs the primary beam to a detector package mounted in a holder, where the detector viewing area of the sample is limited to that of the primary beam.
IPC 1-7
IPC 8 full level
G01J 3/08 (2006.01); G01N 21/25 (2006.01); G02B 27/10 (2006.01); G02B 27/12 (2006.01)
CPC (source: EP US)
G01J 3/02 (2013.01 - EP US); G01J 3/0205 (2013.01 - EP US); G01J 3/0208 (2013.01 - EP US); G01J 3/0256 (2013.01 - EP US); G01J 3/0262 (2013.01 - EP US); G01J 3/10 (2013.01 - EP US); G01J 3/42 (2013.01 - EP US); G01N 21/255 (2013.01 - EP US); G02B 27/1006 (2013.01 - EP US); G02B 27/126 (2013.01 - EP US); G01N 2021/1742 (2013.01 - EP US)
Citation (search report)
- [X] US 2684010 A 19540720 - BULKLEY WILLIAM L
- [X] US 4379233 A 19830405 - ROSENTHAL SCOTT B
- [Y] US 3856415 A 19741224 - SANZ M, et al
- [A] US 2098767 A 19371109 - RICHARD THOMAS
- [A] US 3910701 A 19751007 - HENDERSON GEORGE R, et al
- [A] MEDICAL PHYSICS, vol. 2, no. 4, July/August 1975, pages 219-220; M. GOITEIN: "Mechanism to facilitate the fine adjustment of sidelights"
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0367097 A2 19900509; EP 0367097 A3 19910911; EP 0367097 B1 19950412; CA 1330494 C 19940705; DE 68922181 D1 19950518; DE 68922181 T2 19950824; JP 2899651 B2 19990602; JP H02173719 A 19900705; US 4930865 A 19900605
DOCDB simple family (application)
EP 89119868 A 19891026; CA 613832 A 19890928; DE 68922181 T 19891026; JP 28317189 A 19891101; US 26730988 A 19881104